Daily defecation outputs of mountain gorillas (Gorilla beringei beringei) in the Volcanoes National Park, Rwanda

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00555007" target="_blank" >RIV/60077344:_____/21:00555007 - isvavai.cz</a>

Alternative codes found

RIV/62157124:16170/21:43878425 RIV/62157124:16810/21:43878425

Result on the web

<a href="https://link.springer.com/article/10.1007/s10329-020-00874-7" target="_blank" >https://link.springer.com/article/10.1007/s10329-020-00874-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10329-020-00874-7" target="_blank" >10.1007/s10329-020-00874-7</a>

Result language

angličtina

Original language name

Daily defecation outputs of mountain gorillas (Gorilla beringei beringei) in the Volcanoes National Park, Rwanda

Original language description

Increasing population density can increase infectious disease risk and thus reduce population growth and size. Host-parasite interactions of threatened animals that remain in small protected forest fragments therefore need to be monitored carefully. Due to extreme conservation efforts, the mountain gorilla (Gorilla beringei beringei) population in the 450-km(2) Virunga Massif has more than doubled since 1973, reaching 604 individuals in 2016. To better understand changes in the transmission risks of soil-borne and other enteric pathogens for mountain gorillas, we determined defecation outputs of different age-sex classes and the diurnal variation in feces deposition. We weighed 399 wet fecal samples deposited at nest sites and on trails between nest sites by gorillas of varying age and sex, determined by lobe diameter, from five social groups (n = 58 gorillas) that range in the Volcanoes National Park, Rwanda. We found increasing daily average defecation outputs with increasing age-sex class (infants, 435 g, juveniles, 1346 g, medium-sized gorillas, 2446 g, silverbacks, 3609 g). Gorillas deposited two- to threefold the amount of feces at nest sites compared to on trails, suggesting that nest sites may function as hotspots for enteric pathogen infections through direct contact or when gorillas ingest foods contaminated with infectious larvae during site revisits in intervals matching the maturation period of environmentally transmitted gastrointestinal parasites. In combination with ranging and demographic data, these findings will enable the modeling of spatiotemporal variation in soil contamination and infectious disease risk for Virunga gorillas as their population density continues to increase.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10618 - Ecology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Primates

ISSN

0032-8332

e-ISSN

1610-7365

Volume of the periodical

62

Issue of the periodical within the volume

2

Country of publishing house

JP - JAPAN

Number of pages

10

Pages from-to

311-320

UT code for WoS article

000591564400001

EID of the result in the Scopus database

2-s2.0-85096383042